Path- Respiratory 5

untimely's version from 2015-04-21 19:24

Cattle pneumonia continued

Question Answer
what are the three viral diseases which can cause penumonia in cattle?Infectious bovine rhinotracheitis, Bovine respiratory syncytial virus (BRSV), Bovine parainfluenza virus -3 (BPIV-3).
VIRAL penumonia--> Infectious bovine rhinotracheitis--> what is the etiological agent?Bovine herpes virus 1 (BoHV-1).
*VIRAL pneumonia--> Infectious bovine rhinotracheitis--> (how is it usually xmitted?) WHERE are the lesions and WHAT are the lesions?(usually aerosol) Gross lesions are usually restricted to nasal cavity, larynx, and trachea. It is rare to have pulmonary lesions from this virus, however young calves may develop bronchointerstitial pneumonia!!
*VIRAL penumonia--> Bovine respiratory syncytial virus (BRSV)--> what is the kind of pneumonia this causes??fatal bronchointerstitial pneumonia
VIRAL penumonia--> Bovine respiratory syncytial virus (BRSV)--> what are the lesions like, and where are the lesions?There are CRANIOVENTRAL and CAUDODORSAL lesions and they are different!! CRANIOVENTRAL is atelectic, collapsed, deep red or mottled and rubbery in texture. CAUDODORSAL is edematous, heavy, and firmer.
VIRAL penumonia--> Bovine respiratory syncytial virus (BRSV)--> how does this dz appear histologically?Histologically lesions of necrotizing bronchiolitis with syncytial cells in the alveoli (highly suggetive of bovine resp syncytial virs)
VIRAL penumonia--> Bovine parainfluenza virus -3 (BPIV-3)--> what are the gross lesions of this dz?The gross changes in BPIV-3 pneumonia are usually mild, and consist of a cranioventral or generalized lobular pattern of gray-red discoloration, firm or rubbery texture. Bronchiolitis and mild bronchitis are major histological lesions
All three virial causes of bovine pneumonia affect which age and result in which type of pneumonia?bronchointerstitial pneumonia and young calves for all three

Porcine pneumonia

Question Answer
Porcine enzootic pneumonia is caused by what? aka?caused by Mycoplasma hyopneumoniae, hence why it is aka mycoplasma pneumonia of of swine
which dz is considered to be Worldwide the most economically important disease of pigs when feed conversion are taken into account?Porcine enzootic pneumonia
which age does porcine enzootic pneumonia affect pigs?Pigs become infected in first few weeks of life (so, YOUNG)
what are the lesions of porcine enzootic pneumonia like? where?Lesions are of bronchointerstitial pneumnia affecting cranial, middle and cranioventral part of caudal lobes. Which usually becomes suppurative bronchopneumonia once there is bacterial contamination
how does M. hemolytica affect pigs?M. hemolytica has no role in respiratory diseases of swine, it can cause abortion in swine
Porcine pneumonic pasteurellosis is caused by what etiological agents?P. multocida serotype *A and *D, are normal flora in the nasal cavity and when defense mechanisms are impaired THEN fatal pneumonia develops.
what are the gross lesions of porcine pneumonic pasturellosis? where?Gross lesions are of suppurative bronchopneumonia, involving cranioventral areas of lungs. Fibrinous pleuritis may be present
Porcine pleuropneumonia etiological agent???Actinobacillus pleuropneumoniae.
what age does porcine pleuropneumonia affect?YOUNG! Cause of severe, often fatal pneumonia in 6 week-6 month –old hogs.
What are the clinical signs of porcine pleuropneumonia?(basically ACUTE DZ) fever, dyspnea, cyanosis, blood discharge from nose, and mouth and occasionally vomiting and diarrhea. In chronic stage they show exercise intolerance and cough.
what are the LESIONS of porcine pleuropneumonia? (once again, etiology?)(etiology: Actinobacillus pleuropneumoniae.) Fibrinous bronchopeumonia!!
*Hemophilus pneumonia--> what is the ETIOLOGICAL agent?Haemophilus parasuis. Usually carried in the nasopharynx of normal pigs and following *******stress develops pneumonic lesions. (NOTE: ( Cause of Glasser`s disease- Pericarditis, pleuritis,Peritonitis, polyarthritis and meningitis in pigs). )
*hemophilus pneumonia--> what are the LESIONS caused by this dz (and what's the agent again?)(Haemophilus parasuis) causes ****Suppurative bronchopneumonia.
Streptococcal pneumonia--> etiological agent? what are the lesions?Streptococcus suis type II. Lesions: suppurative bronchopneumonia (****NOTE: Disease is of increasing concern in North America)
**which porcine dz is a Serious zoonosis causing meningitis, deafness and death in butchers and pig farmers?Streptococcal pneumonia (Streptococcus suis type II)
Swine Influenza--> how is this transmitted?aerosol or oral route.
what are the clinical signs for swine influenza? what's the mortality like?Clinically a sudden onset of painful coughing , high fever, nasal discharge, weakness, prostration in all age groups with low mortality.
what are the lesions like in swine influenza? where?Cranioventral, red, firm and collapsed. Enlarged mediastinal lymph nodes. histologic lesions: bronchiolar necrosis and in severe cases interstitial pneumonia.
Porcine Reproductive and Respiratory Syndrome (PRRS) affects what age?MOTHERS AND PIGLETS!! (mom= repro problems. piglets= interstital pneumonia)
how is Porcine Reproductive and Respiratory Syndrome (PRRS) transmitted?(BASICALLY, secretions and excretions) direct through nasal, oral or coital contact with saliva, mucus, urine, semen, mammary secretions and perhaps feces from infected pigs.
what kind of lesions does Porcine Reproductive and Respiratory Syndrome (PRRS) cause in the mothers? piglets?MOMS: reproductive failure characterized by late term abortion, stillbirth, mummified fetus and weak born piglets. PIGLETS: interstitial pneumonia causing dyspnea,
what are the Lesions in postnatal form of PRRS? (Etiology?)interstitial pneumonia (etiology: Arterivirus)
Post weaning multi systemic wasting syndrome (PWMS) affects what age?PIGLETS, NOT MOMS (hence post-weaning), so in 5-12 week-old pigs
clinical signs of post weaning multisystemic wasting syndrome (PMWS)?gain poorly, show respiratory distress, diarrhea, pallor and jaundice (although uncommon, but jaundice in pigs indicates PMWS).
Etiological agent of post weaning multisystemic wasting syndrome (PMWS)?porcine circovirus type 2 (PCV2)
LESIONS of post weaning multisystemic wasting syndrome?Interstitial pneumonia
how does post weaning multisystemic wasting syndrome present histologically?Histologically patchy granulomatus interstitial pneumonia, and lymphadenitis
Secondary infection with Pneumocystis carinii is common in pigs with which two dzs?PRRS and PMWS
PRRS and PMWS can both lead to a 2* infection with which agent? Pneumocystis carinii
Parasitic pneumonia of pigs can be caused by what three parasites? where do they like to live? what problem do they cause?Metastrongylus apri, M. salmi and M. pudendotectus!!! worms live in bronchi/bronchioles, and they are the cause of catarrhal bronchitis. parasitic pneumonia is VERY SERIOUS in pigs

pneumonia of sheep/goat AND horse

Question Answer
Ovine Pneumonic pasteurellosis/shipping fever/ ovine pneumonic mannheimiosis---> what is the etiology? lesions?M. hemolytica biotype A.. .Fibrinous bronchopneumonia similar to cattle
What is the etiology of *Chronic enzootic pneumonia? which age does it affect?MULTIFACTORIAL!! Affects YOUNGER SHEEP <1yr
what are the lesions of chronic enzootic pneumonia?peribronchial lymphoid hyperplasia, alveolar fibrosis.
Septicemic pasteurellosis---> etiological agent? age affected?caused by P. trehalosi. Usually affects lambs >5mo, but can affect other age groups
what are the lesions caused by septicemic pasturellosis?(basically septicemic type lesions) Postmortem lesions consist of hemorrhages in subcutaneous tissue of neck, thorax, pleura, pericardium,and mesentery, hemorrhagic ulcers in tongue, pharynx, larynx, oesophagus, abomasum, intestines.
Contagious caprine pleuropneumonia--> who does this affect, and where?This is exclusively in goats, wide spread in N. America.
what are the two etiological agents of Contagious caprine pleuropneumonia?(diff sp of mycoplasma) (1) Mycoplasma mycoides sp. mycoides (large colony). (2) Mycoplasma mycoides sp. capri
what is the etiological agent of contagious caprine pleuropneumonia NOT IN N.AMERICA and what lesions does it cause?* Mycoplasma capricolum sp. Capripneumoniae; fibrinous pleuropneumonia.
Maedi (Maedi-Visna) is aka? Affects WHO?aka Ovine progressive pneumonia (USA), recently called, “lymphoid interstitial pneumonia”. AFFECTS SHEEP.
what is the etiological agent of Maedi? what is the transmission?caused by a LENTIVIRUS. transmission is believed to be through colostrum.
WHERE are lesions of maedi usually found? Lesions of maedi are confined to lungs and associated lymph nodes.
WHAT are the lesions of maedi?Severe interstitial pneumonia (lungs heavy,Color of lungs is uniform grayish yellow to grayish blue)
Caprine arthritis encephalitis---> affects who? What is the etiological agent? transmission?affects GOATS. Etiology- Retrovirus (lentivirus). transmission is thought to be through colostrum, like maedi
Caprine arthritis encephalitis presents in what three forms?(1) Non-suppurative encephalitis in young goats. (2) Arthritis and synovitis in adult goats. (3) ******chronic interstitial pneumonia**** and mastitis.
Caprine arthritis encephalitis causes which type of pneumonia?chronic interstitial
Parasitic pneumonia of sheep/goats--> what is the main etiological agent he emphasized, and how does it grossly appear in the lung?Muellerius capillaris- (nodular lung worm) which are in nodules in lung tissue-- the nodules will be hard and gritty in later stages
Parasitic pneumonia of sheep/goats--> what are the three (1 is emphasized and on another card) parasites which can cause pneumonia? Muellerius capillaris, Dictyocaulus filaria, Protostrongylus rufescens
Rhodococcosis affects who, at what age, and what is the etiological agent?HORSES specifically 2-4mo old foals, caused by Rhodococcus equi (NOTE: causes cervical lymphadenitis in cattle, goats, cats, dogs, pigs, and immunocompromised humans)
which horse dz can be zoonotic?rhodococcisosis (rhodococcus equi) can affect immunocompromised ppl
Rhodococcosis (horses) causes what kinda pneumonia? what are other hallmark clinical signs?*bronchopneumonia. (pyogranulomatous pneumonia)! Also seen is weightloss, arthritis, diarrhea and subcutaneous abscess.
what are the lesions of rhodococcosis? where? pyogranulomatous pneumonia in CRANIOVENTRAL lung. Will also see ulcerative enterocolitis (bc coughed up and swallowed)
(Equine viral rhinopneumonitis) is caused by what? how is the animal affected?Equine herpes virus (EHV-1, EHV-4). Mild respiratory disease in upper respiratory tract. Bacterial complications may lead to bronchopneumonia.
Equine Influenza--> what is the major clinical sign? what kind of pneumonia can develop?serous to mucopurulent nasal discharge and bronchointerstial pneumonia
Parasitic infection of lungs in horses--> what is the main parasitic agent and how does it affect the lungs? Parascaris equorum: migrating larval stages produce granulomas in lungs.